1. In a 4- to 5-quart covered pan over high heat, bring broth to a boil, then reduce heat to low and keep hot. In a 6- to 8-quart covered pan over high heat, bring 3 quarts water to a boil. Meanwhile, in each of six to eight large, deep bowls, place about 1 teaspoon oyster sauce and 1/2 teaspoon ...